Background Information:
Pilot systems must normally operate under difficult and dirty ambient conditions. Since ignition of a pilot is critical during any start-up process, components intended for ignition must be ready to operate satisfactorily at a moments notice. Designs utilizing high voltage probes requiring ceramic isolators are prone to degradation and premature failure when wet or dirty. External flame front lines, not an integral part of the pilot have also been employed for pilot ignition; however, these systems are very expensive and over time can collect water or moisture to cause scaling and other types of obstruction failures.
Operating Principle:
Stackmatch Flare Ignition, Inc. pilots operate with "Micro Flame Front Ignition" technology that are built with an ignition tube located inside the pilot body. This tube is allowed to fill with the same volatile fuel normally processed through the pilot body. Adjacent to this tube is a high-energy semiconductor component that originates pilot ignition. This design allows for all ignition components to be located at a safe distance from the excessive heat expected at the pilot nozzle. In addition, no water is allowed to remain within the pilot to cause ignition failure. During an ignition event , the nozzle is showered with flame for strong and sound pilot ignition. Because the micro flame front tube is internal and constantly purging forward, all internal component remain cool.
Internally This pilot is equipped with a unique and Patented ignition method. An internal “Micro Flame Front Ignition” is ignited at the base of the pilot by our exclusive “Low Voltage-High Energy” component. This generates a ball of flame at the base of the pilot which escapes the pilot through the nozzle cavity insuring proper pilot ignition
HOW IT WORKS
1. Air and gas flow through the primary pilot
2. As mixed air and gas is passed through the primary pilot, small amounts enter the “Micro Flame Front Ignition” tube through small orifices. It is here where the mixed air and gas is ignited creating a small ball of flame
which purges forward and exits the end of the “Micro Flame Front Ignition”
tube igniting the Primary Pilot.
3. Since the “Micro Flame Front Ignition” is inside the primary pilot, it is cooled due to the cool mixed air and gas passing on the outside of the tube.